BMW 4 Series Suspension Arm Bushings - Front - SPL Parts - Adjustable Caster Rod Monoball replace the factory front caster rod bushings. Designed for xDrive/AWD F3X 4 Series (2012+), they sharpen steering response and alignment control.

These bushings replace stock rubber with low-friction spherical bearings to cut deflection and keep geometry consistent under braking and cornering. CNC-machined offset spacers add ±4° caster adjustment, while 1 in. FK Racing Bearings with PTFE liners and 6061-T6 aluminum housings deliver durability and clear feedback. Sold as a pair; OEM arms not included. Made in the USA.

Features

• F3X 3/4 Series xDrive/AWD front caster rod (2012+)
• Maintains geometry; reduces friction and deflection
• ±4° caster via offset spacers
• FK 1" bearings; 6061-T6 housings/spacers

Questions? Call Texas 512-982-9393 or California 562-981-6800. Our Austin, TX and Los Angeles, CA area shops offer installation and customization.

Buying multiple items? Contact us for shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov